Plate-planer.



A. WOOD.

PLATE PLANEB.

APPLIoATloN FILED JUNE 2a, 1909.

963,348. Patented July 5,1910.

Attorney Vitnesses:v Y Inventor .MQ-S @www (n.525

ings and disposed over t AUGUSTUS WOOD, or HAMILTON, omo, ASSIGNOR To, NinEs-BEMEN'r-ronn comranv,

` t 0E JERSEY CITY, NEW JERSEY.

PLATE-PLANER.

acacia speciiiintnm of Letters Patent.

Patented July 5, icio.

-To all whom it may concern:

Be it known -that I, AUGUSTUS Woon, a` citizen of the United" States, residing at Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Plate-Pl'aners,` of which the following is a specificationo v This invention pertains to planers for planing the edges of metal plates, and it relates to improved means for clamping to the table the plateto be planed.

The invention will be readily understood from the following description taken n'conr nection with-the accompanying drawing, in which:

Figure 1 is a front elevation of aplate 'planer exemplifying my invention, andv Fig. 2a vertical transverse section'of the same. A

In the drawing :-.1, indicates the usual bed of a plate planer, theto of which bed forms the plate receiving tab e: 2, that portion of the bed forming the guideway for the usual tool carrying saddle: 3, the usual housings; 4, the usual'top-brace su ported 'by the houslie table to carry the plate-clamping devices: 5, a seriesof -cylinders rigidly secured tothe lower edge ofthe top -brace and having their upper ends closed, the axisof the-cylinders being vertical,'t he cylinders and their adjuncts being hereinafter described in the singulaigas all are alike: 6, a pistonworking in the cylinv der: 7 a peeking-gland at the. lower end of theV cylinder, the piston being illustrated as of uniform diameter throughout its length," and in the form of a plunger llonger than the cylinder: 8, a guide-rod axially disposed'in the cylinder and rigidly secured in the top of the cylinder: 9, a collaron the lower end of' this rod and adjustable thereon by nuts: 10,' a tube axially secured inthe piston,lwhich is hollow: 11, ahelical spring dis osed within tube 10 aroundfffthe .guide-ro and com- ,pressedv between collar 9 and the upper end of the piston, whereby the tendency of the spring 1s to push the piston up into the cyl.- inder: 12, an inlet p' e communicating with the top of the cylin er, to-supply pressureiiuid:' 13, la pressuremain communicating' with all pf the inlet pipes and adapted to be connected with a sourceof'supply of 'fluid under pressurethrough some suitable valve' or valves, by means of which the main may if be placed in communication with the source plate on the table when the piston is forced down: 17, a plate secured tothe top of the piston around the guide-rod and over the top of tube '10 and serving as the upper abutment for the spring.: 18, nose bolted to the lower end of the pist n and carrying vin lits lower end the pressure-foot 16, this nose having endo the guide-rod and the spring, whereby the spring structure may have a length. considerably in excess of that/of the piston and cylinder. Y

-The tube-prevents the spring or springs from buckling sideWiSe; the removability of the' nose 18 permits the springs and rod to be readily assembled and removed.

When aplate isplaced on the-table, and' a central cavity to receive the lower fluid under pressure admitted to the cylinder, the pistons instantlyand forcibly descend, and thepressure-feetclamp the plate firmly to the table, and, upon the pressure being relieved, the springsinstantly elevate the pistons andpressure-feet and 4leave-the plate free.

Such cylinders 'as may not be wanted in action, may becut out of service by closing their appropriate valves l15. The trunk form for the pistons avoids the use of piston n aV structure of agreat rods, and results ia lateral stiness.

claim:- L

` 1. A plate planer comprising, a cylinder supported in verticahposition by thev topbrace of the planer and having its lower end open, a hollow piston tting the cylinder, a nose projecting. from the lower end of the piston, -a pressure-foot `carried `by the nose, means Yfor l i.,zoi'itrolling the' iow of. pressurelfluid to and from the upper end f the cylinder over the piston therein, and a spring disposed 'within said hollowpiston and connected therewith and withv the roof -of the cylinder and serving to normally support 'of -the iston, a collar on the lower-end of the gui e-rod, a coiled spring disposed `upon vbined substantially as set forth.'

piston, a pressure-foot carried by the nose,-

means for the control of fluid pressure above the piston, a guide-rod axially disposed within the cylinder and having-ts upper end secured inthe top of the cy der and havin its body projecting down through the roo of the piston, a collaron the lower end of the guide-rod and -a coiled springdisposed upon the gui e-rod and compressed between said collar and the roof of the piston, com- 3. A plate planer comprising a cylinder 4supported in vertical position by the topbrace of the planer .and havingitslo'wer end open, a hollow piston tting thecylinder aA nose projecting from the lower end of the piston, a pressure-foot carried by the no se, means for the control of fluid ressure above the iston, a guide-rod axially isposed with'- in t e cylinder and havingglss upper end secured' in the top of the cy der and having its body projecting down through' the roof the guiderod and compressed between said collar and the roof of the piston, and a collar slidably engaging -said guide-rod and dividing s aid slpnii into upper and lower por tions, com ine substantially assetforth. Y

4. A plate planer comprising, a cylinder supported in vertical position by the topbrace of the planer and having its lower end open, -a hollow piston fitting the cylinder, a hollow nose projecting 'from the lower end' of the piston, a pressure-foot carried by the no'se, means for the control of fluid tessure above. the posed withinthe cylinder andhaving its upper end 'secured in the top of the cylinder an having its body projecting down through the roofofthe piston and through the piston and into the hollow of the nose, al

collar on the lower, end of the guide-rod, and

a coiled spiiig disposed upon the guide-rod and com ressed between said collar and the roofmf th set forth.

5. A plate planer compris' aA cylinder supported in vertical position y the top- `brace of the planer and hav' open, a hollow'piston fitting t e cylinder, a removable hollow nose prpjecting from the iston, a guide-rod axia ly dis-v frounding the spring an engaged by the nose and by the' roof ofthe piston, and a removable plate formi -the e piston, combined substantially asy its lower end 5 lower end of the piston, a pressure-foot ear- 'ried by `the nose, means 'for the control of fluid pressure fabove the piston, a guide-rod the cy inderand having itsbody projecting downthrough the, roof of the piston and through the piston and into the hollow o the nose, a colla'r on the lower end of the guide-rod, and a -coiled spring disposed upon the guide-rod and compressed between said collar 'and the roof ofthe piston, combined substantially as set forth.

6. A plate planer comprising, a cylinder supported in vertical position by the topbrace of the planer and having its lower end open, a hollow piston fitting the cylinder, a removable hollow nose projecting from the lower end of the piston, a vpressure-'foot car'- ried by the nose, means for the .control of' fluid pressure above the piston, a. guide-rod 4axially disposed within the cylinder and havin its upper-end'v secured in the top of the cy inder and havin its body projectin down through the roo of the piston an throughthe piston and into the4 hollow of the nose, a collar on the' lower end of the guide-rod, acoiledspring disposed .upon the cuide-rod and compressed-.between saidcol- .lar and the roof of the piston, and atube surrounding the spring and having its ends engaged by the nose and by the roof of the piston, combined substantially as setorth.

7. A plate planer comprising, a cylinder supported in vertical position'by the top-V brace of the planer 'and having. its lower end open, a hollow piston fitting the cylinder, a removable hollowv nose projecting from the lower end of the piston, a pressure-foot carried by the nose, means for the control of iuid pressure above the piston, a guide-rod axially disposed within the cylinder and havin its upper "end secured in thejtop oi.

'axially disposed within the cylinder and v 'havin its upper end secured in the top of'65 the cy inder and having its body projecting',

. down through the roof of thetpistonand through the piston andinto the hollow of thednose a colillal"1 on thecllower eind of ge e-ro a co e spring ispose uponv e hlide-rod and compressed between said col- 'lar and the noof of the istn2 a tube surportion of the roof of the piston whic en- 'Emma R. SHnLnY, M. S.ABELDEN.

having its Aends 

